Holddown for spring frogs



March 23 1926. 1,577,672

. c. G. ALMQUlsT HOLDDOWN FOR SPRING FROGS Filed Nov, 16, 1925 i@ dm Patented lVlar. 23, 1926.

UNIT ST'ES ATENT OFFEQE.

CARL G. ALMQIST, OF CHICAGO, LLINOIS.

nonnnown' son srnrive Enoes.

Application led November To @ZZ whom t muy concern."

Be it known that I, CARL G. ALMQUrsT, a citizen of the United States, residing at Chicago, in the. county of Cook and State of lll1- nois, have invented a `certain new and useful Improvement in Holddowns for Spring. Frogs, of which the following is a full, clear, concise, and exact description, reference being l ad to the accompanying drawings, forming a part of this specification.

My invention relates to a hold-down device, particularly useful in connection with spring frogs.

It has been customary in railroad practice to employ in conjunction with a movable spring rail of a siding or cross-over switch, a device termed a hold-down for maintaining the rail in position on the tires. That is to say, the holdsdown prevents the upward movement of the movable track or rail. rlhese hold-down devices have heretoforebeen secured to the tie plate by bolts and nuts. Obviously, should the bolts become loose, the hold-down device would cease to function and permit the spring held rail totilt or to rise. j

Now l propose to reorganize the construction of the hold-down device to secure a better connection to the tie plate. l propose to provide means of such a character that even though the bolts and nuts should become loose, the rigidity of the hold-down would not be affected and it would still be enabled to perform its function.

An object of the present invention is to provide an improved hold-down device of simple, inexpensive rand compact construction. l

Another object of the present inventionis to provide a hold-down device wherein additional means is provided for securing it to its mounting.

Still another object of the present invention is toprovide a relatively stronger holddown device without deviating to any considerable extent from standard practice.

In accordance with the general features of my invention, I form on the hold-down device a pair of lateral wings adapted to abut a pair of co-operating lips in the tie plate associated therewith. lVhen the hold-down is mounted in place on the tie plate the lips are disposed immediately over the wings and serve to prevent upward movement of the hold-down device. .l also preferably bolt the lips of the tie plate to the lateral wings 16, 1925. Serial No. 69,268.

of the hold-down device, thereby insuring a more rigid and compact arrangement.

ther objects and advantages of the present invention will more fully appear from the following detail description, taken in connection with the accompanying` drawings which illustrate one embodiment thereof, and in which Figure 1 4is a fragmentary plan view of a spring frog showing device applied thereto;

Eig. 2 is a plan sectional view of my novel my novel hold-down hold-down devicetaken on the line 2 2 of 10 denotes a plurality of spaced ties of a railroad track. lounted on the tics 10 is a resilient or spring side rail 11 and a rigid wing rail 12. The spring rail 11 is movable and is controlled by any suitable switch in a manner well known to those versatile with the railroad art.` Obviously, although my invention is illustrated in conjunction withv a side track, it is of course to kbe vunderstood that it may be used 1n many other analogous capacities without deviating from lthe fea-v tures of my invention. l have indicated the hold-down device generally by the reference character 15. lt is shown mounted on the ties 10 inFig. 1; Also mounted on the ties 10 adjacent the spring rail or track is an.- other rigid rail 13, which is in alignment with the unbent portion of the spring rail l1. The portion of the spring rail 11 adjacent the rigid rail 13 is movable therefrom. Normally, a spring frog tends to urge the spring. rail 11 towards the rigid rail l2, retaining it in contact with the rigid rail 13. rl'he spring frog is indicated generally by the reference numeral lil, although it may be of any suitable or useful type, such as that disclosed in Patent No. 563,027 to Henry Elliot, issued June 30, 1896. Mounted on one of the ties 10 is a tie plate 16 disposed under the spring rail 11 andthe rigid rail 12. This plate 16 may be fastened to the tie associated therewith by means'of spikes 17.`

Bolted to this tie plate 16 a stop 18 which- Cil serves to limit movement of the spring rail 11 away from the rigid rail 12. Such a stop is well known to those versatile with railroad sidings.

Mounted intermediate the webs of the outer side of the spring rail 11 is a reenforcing bar 20 which is also well known to railroad engineers. This reenforcing bar 2O has formed thereon a lateral projection 21 adapted to co-operate with my novel holddown device 15. This projection 21 is formed by bending the bar outwardly and then bending it back upon itself again and pinching the bent out portions together.

I shall now proceed to describe in detail my novel hold-down device 15. 1t comprises a top plate 21 having formed integral therewith a pair of downwardly extending legs 22 and 23, the width of these legs being a little less than halfof that of the top piece 21; The leg 22 has formed thereon a lateral wing 24 and the leg 23 has formed thereon a lateral. wing- 25. l shall now describe in detail the manner in which the hold-down device 15 is fastened to the associated tie plate.

In Fig. 1 I have illustrated in conjunction with the middle tie 10, a, tie plate 26 upon which the hold-down device 15 is mounted. The tie plate 26 is equipped with a rectangular shaped aperture 27 through which the hold-down device 15 is inserted. That is to say, the top piece 21 and the legs 22 and 23 are inserted through this aperture 2T. The two lateral wings 24 and 25 of the hold-down device cannot, however, pass through the aperture 2T, since the aperture 27 is made just large enough to permit the upper portion of the hold-down device to be inserted therethrough. In order for the tie plate to accommodate the lateral wings 24 and 25, l

, preferably raise the portions of the tie'plate 26 as indicated at 30. That is to say, T form in the tie plate 26 a pair of lip portions 30 under which the lateral wings 24 and 25 are disposed, the under side of the wings 24 and 25 being thus made'flush with the under side of the tie plate 26. The wings 24 and 25 are preferably attached to the lip portions 3() by bolts and nuts 31.

norder to reenforce the tie plate 26 at the place' ofthe aperture 27, T provide a cross bar 32 preferably riveted to the tie plate 26 on each side of the forward end of the aperture27, as is clearly illustrated in 2. This bar 32 is fastened to the tie plate 26 by means of rivets 33.

In mounting my device on the tie 10, it must be disposed in the tie plate 26 before the same is spiked to the tie 10. The tie plate 26 is furnished in a condition ready to receive the hold-down device 15. It is to be understood that the cross bar 32 is riveted to the tie plate before the same is delivered for installation. The hold-down device 15 is mounted in place ,in the tie plate 26 by first inserting the end designated by the reference numeral 40 through the aperture 27 intermediate the lips 30 and the cross bar 32. After this is done the entire holding device 15 is tilted into its correct horizontal position and the legs 22 and 23 are pushed throughthe aperture 27 until the wings 24 and 25 come in contact with the lips 30. Then the wings 24 and 25 are bolted to the lips 30 by means of bolts and nuts 31. After this is done the hold-down'device 15 in the tie plate 26 is in a condition ready to be attached to the tie 1() by means of spikes 41.

The tie plate 26 is also held in vplace by the weight of the rails 11 and 12 mounted thereon. That is to say, not only will the spikes 41 tend to hold the tie plate 26 to the tie 10, but the weightof the rails pressing thereon will augment the fastening action.

The hold-down dev-ice 15 is so positioned with respect to the adjacent side of the spring rail 11 that the lateral bend 21 in the reenforcing bar 2O extends under the top piece 21 of the hold-down device 15. The lateral bend 21 of the reenforcing bar 2O is free to move with the rail 11 under the top piece 21 of my novel holding device. The lateral movement of the rail 11 is, not only limited by the stop 18 but is limited by the cross bar 32 attached to the tie plate 26. Aftera movement of the rail 11 to an abnormal position, the springs of the frog 14 function to returnthe same to its normal position in a manner well known to those versatile with the art.

From the foregoing it is evident that my hold-down device is a decided improvement over the prior art. In the prior type of hold-down devices, theonly fastening medium employed between the tie plate and the hold-down device proper were belts. @bvi` ously, should the bolts become loose, the etliciency of the. hold-down device wouldbe affected and it would not 'be able to function properly. That is to say, it would fail to hold the rail associated therewith from moving upwardly away from the tie.

Tn my construction, evenj though the bolts 81 should become loosened in operation, the.

hold-down device would still be enabled to perform the function of holding the rail 11 from moving upwardly away from the ties- 10. This is accomplished through the medium ofthe lateral wings 24 abuttingt-he lips 30 formed in the tie plate itself. It is apparent that the tie plate will be held in place by noth the spikes 41 and the rails, including the rigid rail 12 mounted thereon.

Furthermore, I desire it understood that although T have disclosed my hold-down device as being of necessity mounted in the tie plate before the same is attached to the tie proper, the tie plate could be provided with a slot of suiiicient size to permit the lli() llU hold-down device to be mounted therein even after the same is attached to the tie. That is to say, the aperture 27 could be designed at one end to be of sufficient size to permit the entry of the wings of the holddown device l5, and the wings could thereafter be slid in place under the upwardly projecting lips of the plate proper, and then the cross bar 32 could be utilized for closing up the enlarged portion of the aperture 27 to prevent the removal or movement of the hold-down. device. In any event, the primary feature of my invention-resides in the use of lateral wings ab-utting portions ofthe tie plate and adapted to co-operate with the 'bolts to prevent the hold-down device from being moved from the tie plate 26.

also although I havedisclosed and describedl in detail the preferred embodiment of my invention, it is, of course, to be under-` stood that the invention is to be limited only\ Vin so far as defined by the scope and spirit of the appended' claims.

I claim Y 1. In combination, a tie plate and a holddown associated therewith having a lateral wing extending under a portion of the said tie plate to prevent upward movement of the hold-down. j

2. In combination, a tie plateand a holddown associated therewith having. a lateral wing extending under araised portion of the said tie plate to prevent upward movement of the hold-down.

8. In combination, a tie plate having an aperture therein, and a hold-down projecting through the said aperture and having 'a pair of lateral wings extending under portions of the said tie plate oneither side of the aperture, the said lateral wings cooperating with the abutting portions of the tie plate to prevent upward displacement of the hold-down.

4. In combination, a tie plate having an aperture therein, a hold-down projecting through the said aperture and having a pair of lateral wings adapted to abut portions of the tie plate on either side of the aperture therein, and a reenforcing bar spanning the aperture in the tie plate rigidly secured to the tie plate on either side ofthe aperture to reenforce the same, the said lateral wings co-operating with the abutting portions of the tie plate to prevent upward displacement of the hold-down.

5. In combination, a tie plate having 'a rectangular aperture and a raised portion on the side of the said aperture, and a holddown projecting through the rectangular aperture and having a lateral wing extending under the 'aised portion of the said tie plate and co-operating therewith to prevent upward displacement of the hold-down.

G. In combination, a tie plate having an aperture and a raised portion on either side of the aperture, and a hold-down projecting through the said aperture and having a pair of lateral wings for co-operating with the raised portions of the tie plate to prevent upward displacement of the .said hold-down.

7. In combination, a tie plate having an aperture and raised portions on both sides of the aperture, a hold-down projecting through the said aperture and having a pair of lateral wings for co-operating with the raised portions of. the tie plate to'prevent the upward displacement of the said holddown, and a plurality of boltsand nuts for securingthe lateral wings to the raised portions of the tie plat-e.

8. In combination, a tief plate having an aperture and raised portions on Vboth sides of the aperture, a hold-down projecting through the said aperture having a pairof lateral wings extending under the raised portions of thetie plate and fastened to the said raised portions, the under side of the said Vlateral wings being flush `with the under side of the tie plate, a tie,land means for fastening the tie plate to the tie.

`9. In combination, a tie plate having an aperture, a` hold-down projecting therethrough, the saidtie plate having a raised portion adjacent the said aperture, the said hold-down having a lateral wing extending .under and abutting the said raised portion,

means for fastening the raised portion to the lateral wing, and means for reenforcing the tie plate across Ithe portion ofthe tie plate having the aperture,

l0.` In combination, atie plate having an aperture and raised portions on both sides of the aperture, `a hold-down projecting through the said aperture having a pair of lateral wings co-operating with and abutting thesaidraised portions for preventing upward displacement of the hold-down, means for fasteningthe lateral wings to the raised portions of the tie plate, stop means for reenforcing the tie place across the portion having the aperture, a tie, and means for fastening the tie plate to the tie.

ll. In combination, a tie, a tie platev fastened thereto, a side spring rail mounted on the said tie plate, the said tie plate having an aperture therein and a raised portion on a side of the said aperture, a hold-down projecting through the said aperture having a lateral wing extending under the raised portion of the tie plate intermediate the tie plate and the tie, and means projecting from the side rail under the said hold-down.

l2. In combination, a tie, a tie plate fastened thereto, a spring side rail mounted upon the said tie plate, the said tie plate having an aperture therein and raised portions on both sides of the said aperture, a hold-down projecting through the said aperture in the tie plate having a pair of lateral wings extending under the said raised portions intermediate the tieplate andthe tie,

means forfasteniug the lateral wings of the` hold-down to thesaid raisedportions ofthe tie plate, a,reenforeingniienibergspanning,theA aperture in the said tie plate for reenforeingVV the tie plate at the` place of the aperture,

the said: reenforeingA member .serving as` an stop for limitingsidewvard movement of the spring rail, and a ieenforcing meinbcr'as.- sociatedwith the said spring;l rail having a portion extending under thesaid hold-down,

the said extension of the reenforningmemberv co-operating'` with the holdfdown to prevent upward movement of the Saidfside rail.

18. In Combinatiom a tie, a tie plate fastened thereto, aiside spring i'ailvmounted upon the saidtie plate, a rigid rail mounted; upon the tie plate, a springfrog for Vat allv times urging the springY rail -towards the rigid rail., the said tie plate having airaperture therein and raised portions on both sides of the aperture, a holdedown projectingthrough the aperture in thev tie platev having,` a pair oflateral wings extending-5 under the raised portions ofthe tie plate intermediate the tie plate and the tie, means foifzisteningl the lateralwings of the holddown to the raised portions ofthe .tie plate,

a i'eenforcing member. associated with theH said spring rail having a lateral projectionA extending under the hold-down and adapted to co-opeiate therewith in preventingupward displacement of the said springY rait., and means for reenforeing the tie` plate at the place the apertureI is formed therein.

11i. In combination, a tie, atie plate fastened thereto, aspring-Y side railmountedz upon the said tie plate, a'rigid rail mounted upon the tie plate, a spring` frog'for at all tiines urging' the springrail :towards the rigid rail, the said tie plate havingga-ir apertureV therein andraised portions on bot-h sides of the apertures,V a holddoi'vn` projecting` through the apertureand tie plate having a'pair ofilateral wings extending under the raisedfportions of the t-ie plate intermediate the tie and the tie'plate :for co-operatingy with the tie plate in preventingupward displacement of the hold-down, meansf for;

fastening the lateral wings ofthe hold-down tothe raised portions of the tie plate, and

reenforcing means associated with the said springv side rail extending` under-the said hold-downpan-d adapted to co-operate:withtowards-the rigid rail, the said tie plate having` anvaperture thereinand raised portions on both sides ofthe apertureadield-A dowmprojecting through the said tie plate and having a pair of lateral 'wings extending.

under the said raised portions intermediate the raised'portions and the tie, said lateral wingscoroperatingwith the said raised por-A tions to prevent upward displacement of the hold-down, meansfor fasteningi the lateral wings to the raised portions ofthetieiplatq.

a. reenfore7111535;bar spanningfthe aperture in thesaid tie plateforreenforcingthe tie plate at, the place of the aperture, reenforcingmeans associated with the` said i. side i rail, and a lateral projection on the said reenforcing;- ineaiis extending under the said hold-down and adapted to co-operate therewithin preventing upward displacement of' the Aside rail, thensaid reenforcing' bar serving asa stop for limiting,` sideward movement ofthe said isider rail.

f In witness whereof, I hereunto subscribe my naine thisMth da5T of November, 1925;

CARL G. ALMQUIST. 

